MacBook Pro 16" not charging through Aorus Gaming Box 1080 eGPU
Clear all

MacBook Pro 16" not charging through Aorus Gaming Box 1080 eGPU  


New Member
Joined: 3 years ago

Hi everybody,

I have this problem where my Gaming Box 1080 no longer charges my MacBook Pro 16". I bought the eGPU a year ago to use with a 15" and everything worked fine. But, since I upgraded to a new 16", the eGPU no longer charges my computer while in use, and instead actually discharges the battery even faster. Furthermore, it actually tells my MacBook that it's charging, and prevents me from using the apple charger and the eGPU at the same time. So i'm basically forced to use the eGPU only until my battery discharges. Then i have to disconnect it if i want to charge my Mac.

Could this be a PSU problem? And if it is, how and with that PSU should i replace it?

Could it be that the new 16" can't charge fast enough with the power the eGPU provides since it's more powerful?

Any help on this matter would be very welcome.

Thanks and be safe


eGPU Aorus Gaming Box 1080
MacBook Pro 16" - 2,6 GHz 6-core Intel i7 - 32GB RAM - AMD Radeon Pro 5500M

Bootcamp/Windows 10 build:1909
Thunderbolt 3 100W CableMatters 1m cable

MacBook Pro 15'' Touchbar 2018 + eGPU Aorus Gigabyte Gaming box GTX 1080

Illustrious Member Admin
Joined: 4 years ago

@martinanthony, Try a different Thunderbolt 3 cable. If you have a USB-C Amp/Volt meter that would help too.


external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

2013 Mac Pro (FP D500 x2) [3rd,12C,E] + RX 5700 XT @ 16Gbps-TB2>TB3 (Mantiz Saturn Pro) + macOS 11 [build link]  

Reputable Member
Joined: 4 years ago

Did you ever figured it out? My friend is facing the same problem, same cable length, same eGPU.

2017 15" MacBook Pro (RP555) [7th,4C,H] + GTX 1080 Ti @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.12.6 & Win10 [build link]